Which 4G router do I go for?

I am looking to get a sim enabled 4g router I've been looking at the following two products.

http://www.solwise.co.uk/3g-routers-4g-lte-s4.htm

http://www.amazon.co.uk/Huawei-B593s-22-Unlocked-Wir...

Both come with compatible external antennas which I may need also.

http://www.solwise.co.uk/4g-antenna-omni-xpol-a0001....

http://www.ebay.co.uk/itm/Omni-Directional-4G-3G-LTE...

I'm leaning more towards the Solwise one as they've been really helpful with advise but if the Huawei smokes it as far as specs and better antenna strength then I'll go with that.

Would appreciate any feedback if anyone has any experience in dealing with setting up 4g routers.

Many Thanks